Dual-Mode Quadrature Oscillator Based on Single FDCCII with All Grounded Passive Components

A fully differential second-generation current conveyor (FDCCII) based dual-mode quadrature oscillator with all grounded passive components is presented in this chapter. It comprises one FDCCII, three resistors, and two capacitors. The proposed circuit of quadrature oscillator has the capability to provide two quadrature outputs in voltage mode and four quadrature outputs in current mode, simultaneously. The oscillation frequency and condition of oscillation of the proposed circuit are orthogonally adjustable. Moreover, total harmonic distortion of the outputs is low and power dissipation is also low. The effects of nonidealities of FDCCII on the proposed circuit are also studied. Simulations results are carried out using HSPICE simulation tool with 0.18 μm technology to validate the theoretical analysis.